🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.5

Radius: 10.6

Gravity: 8.18 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.65 AU - 0.75 AU

Year: 412 Days

Day: 5.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 150.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,531,057 km

• M1: 131,796 km (0.105 R)
• M2: 569,818 km (0.109 R)
• M3: 955,482 km (0.113 R)
• M4: 1,299,108 km (0.101 R)
• M5: 1,719,777 km (0.038 R)
• M6: 2,230,803 km (0.07 R)
• M7: 2,632,923 km (0.104 R)
• M8: 3,049,702 km (0.114 R)
• M9: 3,547,564 km (0.104 R)
• M10: 4,071,456 km (0.083 R)
• M11: 4,906,810 km (0.039 R)
• M12: 5,242,059 km (0.114 R)
• M13: 5,835,065 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.1

Radius: 11.7

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.62 AU - 0.98 AU

Year: 503 Days

Day: 7.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,531,057 km

• M1: 146,307 km (0.117 R)
• M2: 595,998 km (0.104 R)
• M3: 974,630 km (0.078 R)
• M4: 1,477,728 km (0.106 R)
• M5: 1,969,456 km (0.11 R)
• M6: 3,467,978 km (0.099 R)
• M7: 4,963,508 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.8

Radius: 9.1

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.91 AU - 0.93 AU

Year: 620 Days

Day: 7.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,531,057 km

• M1: 113,246 km (0.12 R)
• M2: 547,827 km (0.119 R)
• M3: 964,308 km (0.047 R)
• M4: 1,553,125 km (0.058 R)
• M5: 1,852,171 km (0.093 R)
• M6: 2,374,118 km (0.063 R)
• M7: 2,754,396 km (0.081 R)
• M8: 3,447,932 km (0.056 R)
• M9: 4,027,923 km (0.085 R)
• M10: 4,846,522 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.3

Radius: 12.4

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.17 AU - 1.35 AU

Year: 994 Days

Day: 10.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,531,057 km

• M1: 154,834 km (0.118 R)
• M2: 545,284 km (0.084 R)
• M3: 1,254,378 km (0.113 R)
• M4: 2,658,803 km (0.114 R)
• M5: 3,552,650 km (0.119 R)
• M6: 4,823,484 km (0.091 R)
• M7: 5,357,698 km (0.116 R)
• M8: 6,867,889 km (0.108 R)
• M9: 7,900,862 km (0.09 R)
• M10: 8,317,193 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.4

Radius: 15

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.55 AU - 1.63 AU

Year: 1409 Days

Day: 9.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,531,057 km

• M1: 186,698 km (0.039 R)
• M2: 749,934 km (0.055 R)
• M3: 1,323,343 km (0.101 R)
• M4: 1,831,976 km (0.081 R)
• M5: 2,450,114 km (0.106 R)
• M6: 3,150,382 km (0.066 R)
• M7: 3,648,243 km (0.079 R)
• M8: 4,199,063 km (0.104 R)
• M9: 5,761,014 km (0.108 R)
• M10: 7,378,017 km (0.104 R)
• M11: 8,130,195 km (0.104 R)
• M12: 8,933,237 km (0.113 R)
• M13: 9,547,336 km (0.048 R)
• M14: 11,257,090 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.7

Radius: 14.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.62 AU - 1.78 AU

Year: 1558 Days

Day: 11 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,531,057 km

• M1: 182,958 km (0.064 R)
• M2: 641,326 km (0.027 R)
• M3: 1,170,304 km (0.082 R)
• M4: 1,924,726 km (0.071 R)
• M5: 2,408,526 km (0.11 R)
• M6: 3,003,626 km (0.082 R)
• M7: 3,764,182 km (0.071 R)
• M8: 4,610,756 km (0.078 R)
• M9: 5,101,138 km (0.06 R)
• M10: 5,832,522 km (0.066 R)
• M11: 6,358,358 km (0.07 R)
• M12: 7,100,065 km (0.113 R)
• M13: 7,728,824 km (0.033 R)
• M14: 8,787,379 km (0.104 R)
• M15: 9,907,418 km (0.052 R)
• M16: 10,870,230 km (0.091 R)
• M17: 13,183,612 km (0.081 R)
• M18: 13,716,180 km (0.051 R)
• M19: 14,263,259 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.9

Radius: 6.4

Gravity: 14.48 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 7.23 AU - 11.93 AU

Year: 20843 Days

Day: 17.9 Hours

Environment

Temp: -245 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 44,531,057 km

• M1: 79,885 km (0.04 R)
• M2: 506,688 km (0.07 R)
• M3: 1,271,133 km (0.039 R)
• M4: 1,545,196 km (0.087 R)
• M5: 2,659,252 km (0.113 R)
• M6: 3,382,707 km (0.116 R)
• M7: 3,641,063 km (0.077 R)
• M8: 4,132,940 km (0.105 R)
• M9: 4,633,644 km (0.037 R)
• M10: 5,362,934 km (0.09 R)
• M11: 5,917,194 km (0.05 R)
• M12: 6,509,003 km (0.074 R)
• M13: 6,909,776 km (0.045 R)
• M14: 7,760,689 km (0.046 R)
• M15: 8,009,021 km (0.117 R)
• M16: 10,488,456 km (0.088 R)
• M17: 13,295,960 km (0.11 R)
• M18: 16,081,921 km (0.049 R)
• M19: 17,824,736 km (0.099 R)
• M20: 19,689,623 km (0.098 R)
• M21: 21,877,193 km (0.097 R)
• M22: 22,173,995 km (0.115 R)
• M23: 22,373,259 km (0.11 R)
• M24: 23,594,576 km (0.108 R)
• M25: 25,508,980 km (0.1 R)
• M26: 25,837,796 km (0.069 R)
• M27: 26,280,606 km (0.07 R)
• M28: 35,822,407 km (0.064 R)
• M29: 36,650,431 km (0.041 R)
• M30: 37,491,171 km (0.106 R)
• M31: 42,807,132 km (0.12 R)
• M32: 44,684,884 km (0.111 R)
• M33: 50,302,583 km (0.065 R)
• M34: 59,969,448 km (0.117 R)
• M35: 69,943,437 km (0.116 R)
• M36: 70,372,484 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.8

Radius: 7.8

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 8.57 AU - 10.83 AU

Year: 21236 Days

Day: 19.9 Hours

Environment

Temp: -241 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,531,057 km

• M1: 97,089 km (0.039 R)
• M2: 550,969 km (0.118 R)
• M3: 1,525,898 km (0.103 R)
• M4: 2,613,026 km (0.052 R)
• M5: 5,453,740 km (0.094 R)
• M6: 7,132,677 km (0.092 R)
• M7: 8,369,253 km (0.115 R)
• M8: 9,936,739 km (0.119 R)
• M9: 11,313,788 km (0.108 R)
• M10: 19,296,181 km (0.072 R)
• M11: 22,847,185 km (0.081 R)
• M12: 24,866,457 km (0.104 R)
• M13: 27,578,068 km (0.042 R)
• M14: 28,162,846 km (0.103 R)
• M15: 28,755,703 km (0.079 R)
• M16: 35,837,816 km (0.084 R)
• M17: 44,397,955 km (0.086 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 17,552 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit